Sash-lock.



No. 634,2!3. Patented Dct. 3, |899.

A. P. HEIDT.

SASH LUCK.

(Applimian am Nav. 25, 189s.) (No Modal.) I 2 Shouts-Sheet l,

TTORNEK9- No. 634,2I3. Patented Oct. 3, |899.

A. P. HEIDT.

SASH LUGK.

(Application ,tiled Nov. 25, 1898,)

(No Model.) 2 Sheets-Sheet 2h ma Nonms versus co, Pnouumm wAsHxNaTcN, n c

PATENT Enron.

ALLEN PAUL I-IEID'I, OF BAY SHORE, NEW YORK.

SASH- LOCK.

SPECIFICATION forming part of Letters Patent No. 634,213, dated October 3, 1899.

Application filed November 25,1898. Serial No. 697,306. (No model.)

To aZZ whom t may concern:

Be it known that I, ALLEN PAUL HEIDT, a citizen of the United States, residing at Bay Shore, in the county of Suffolk and State of New York, havel invented certain new and useful Improvements in Sash-Locks for Windows, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same. v

This invention relates to sashlocks for window-sashes; and the object thereof is to provide an improved device of this class which may be used in connection with ordinary counterbalance-weights and cords or without such devices, and by means of which either the upper or the lower sash may be locked in a closed position or said sashes adjusted to any desired position for ventilation or other purposes. v

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which- Figure 1 is an inside view of a part of oneside of a window-frame, showingone form of my improved locking device connected therewith, part of the construction being shown in section,` and a separate locking vdevice being provided for each sash; Fig. 2,v a section on the line 2 2 of Fig. 1; Fig. 3, a side view of a casing which is countersunk in the windowframe and in which, part of the, locking devices is mounted, said casing being detached from the frame; Fig. 4, an edge view of that part of the window-frame shown in Fig. 1'; Fig. 5, a view similar to Fig. 1, showing a modified form of construction, in'which one locking device is employed for both sashes; and Fig. 6, a section on the line 6 6 of Fig. 5.

In the drawings forming part of this specification the separate parts of my improvement are designated by the same numerals of reference in each of the views, and in said drawings, reference being made to Fig. 1, I have shown at 7 a part of one side of a window-frame, and said frame is provided with the usual vertical spaces 8,' in which the sashes are mounted, the sashes being not shown and said spaces being separated by the usual central bead or strip 9 and being formed by said central bead or strip 9 and the outer bead or strip 10 and the inner strip 11.

In Figs. 2 and 6 'I have shown the sashes.

' 12 or parts thereof, and each of these sashes is in practice provided at one side with a rackbar413. (Clearly shown in Fig. 2.)

I will iirst describe the locking device applied to the lower sash and mounted in the right-hand space 8, as shown in Fig. 1 and *shown in section in Fig. 2, and in this form of construction I countersink in the frame a casing 14, which is oblong in form and provided with a central oblong chamber 15, through which passes a tubular shaft 16,which is also countersunk in the side of the frame and covered by the inner bead or strip 11, and said tubular shaft is provided with a cam 17 and secured transversely of the casing 14 below the shaft 16, as shown in Fig. 2, and at the right of Fig. 1 is a fulcrum-pin 18, and mounted in the casing 14 is a locking-lever 19, which is fulcruine'd on said pin 1S and the lower end of which is provided witha head 20, between which and the inner wall of the casing 14 ,is placed a spiral spring 21. The spiral spring 21 operates normally to force the lower end of the locking-lever 19 outwardly and the upper end thereof inwardly, and said level1v projects upwardly and is curved to correspond with the cam 17, over which it passes, when the parts are in the position shown in Fig. 2, and the upper end thereof is provided with an outwardly-directed lug or projection 22, which is adapted to operate in connection with the rack-bar 13 on the sides of the adjacent sash.

Secured to the inner surface or edge of the frame 7 is a plate 23,'provided with keyholes 24, and Ialsoprovide a key 25, having a shank 27, adapted to be inserted into the keyholes 24.

The end of the tubular shaft 16 is angular in cross-section, as shown in Fig. 3, and the inner end of the shaft 27 is similar in form and adapted to enter said tubular shaft, and the tubular shaft 16 is providedwith a spring 28, which is wound thereon and one end of which is secured thereto and the other to the casing 15 at 29.

The locking device for the upper sash (shown at the left of Fig. 1) is precisely the same as that for the lower sash, with the exception that the fulcrum-pin 18 for the lever 19 is placed in the upper portion of the chamber 15 and the free end of said lever IOO projects downwardly, and the key for each of said devices is the same, and in the normal position of each of said locking devices the springs 2S turn the tubular shaft 16 into the position shown in Fig. 2, in which position the cams 17 force the free ends of the levers 19 outwardly and they engage with the rackbars 13, and the sashes are locked in whatever position they may be in.

In order to release the locking device, so as to raise or lower the sashes, the keys 25 are turned to the right, and the tubular shaft 16 is turned correspondingly in the direction of the arrow shown in Fig. 2, and the cams 17 are turned to the right, and the springs 2l force the free ends of the levers 19 inwardly, so that the lugs or projections 22 thereon are disconnected from the rack-bars 13, and the sashes may be raised or lowered, as will be readily understood. In order to hold the tubular shaft 16 in this position, the keys 25 are provided with lugs or projections 30,which are turned so as to enter a notch or recess 31, formed in the perimeter of the keyholes 24, and all that is necessary in order to operate the tubular shaft 16, as described, is to insert a key, as shown in Fig. 1, and turn the same and then slide the lug or projection 30 into the notch or recess 31, it being understood that the key-shank 27 is free to slide in the tubular shaft 16, and when the lug orprojection 30 is removed from the notch or recess 31 the spring 2S forces the shaft 16 back into the position shown in Fig. 2, and the cam 17 forces the lever 19 outwardly, and the corresponding sash is again locked.

In Fig. 1 I have shown but one of the keys 25; but, as hereinbefore stated, it will be apparent that both of these are of the same form, and it will also be apparent that the locking device for the upper sash (shown at the left of Fig. 1) or the separate parts thereof may be arranged in the same manner as those for the lower sash at the right of Fig. 1 and in Fig. 2 without in any wise altering the construction of the parts, the arrangement of the lever 19 and the direction in which the shaft 16 is turned being simply reversed.

In Figs. 5 and 6 Lhave shown a modiiied form of construction in which a single locking device is provided for both sashes, and in this form of construction the casing 15 is countersunk in the frame beneath the central bead or strip 9, and the locking-lever 19 is provided at its free end with a cross-head 32, which operates in connection with the rackbars 13 of each sash. The frame 7 is also provided with a transverse chamber 33, in which the cross-head 32 works, and the bead 19 is cut away transversely of its inner side, as shown at 3l, for a similar purpose. With these except-ions the locking device shown in Figs. 5 and 6 is exactly the same as each of those shown in Fig. 1, the diiference being that by reason of the cross-head 32 on the locking-lever and the position of said lever a single locking device is adapted to operatein connection with both sashes. It will also be seen on an examination of Fig. 2 that the le'ver 19 is provided rearwardly of its f ulcrumpin 18 with a backwardly-directed pointed projection 19, and if at any time the spring 2l should break or for any reason become useless the lever 19 may still be operated by the cam 17 by turning the shaft 16 so that the point 17 of said cam will strike the pointed projection 19L of the lever. This operation will force the free end of said lever outwardly, as hereinbefore described, it being observed that the pointed projection 19 is in a transverse plane nearer to the shaft 16 than that of the pivot 1S of said lever.

Although the shaft 16 is shown and described as tubular, it is evident that said shaft need not be tubular in form, all that is necessary being to provide an opening in the end thereof, which is angularin cross-section and adapted to receive the shank 27 of the key 25, which is adapted to slide therein, said opening and said shank being angular in cross-section. It will also be observed that the rack-bars 13 of the sashes are countersunk therein, and by reason of this fact the sashes may be made to closely lit the frame, and my improved lock may also be applied to other devices, as well as to window sashes and frames. V

Having fully described my invention, I claim as new and desire to secure by Letters Patent- 1. A window-sash provided with a rack-bar at one side thereof, and a casing countersunk in the frame of the window adjacent to said sash, a spring-operated shaft passing through said casing and provided with a cam, a lever mounted in said casing and adapted to be operated by said cam, said lever being adapted at one end to operate in connection with said rack-bar, and means for operating said shaft, substantially as shown and described.

2. A window-sash provided with a rack-bar at one side thereof, and a casing countersunk in the frame of the window adjacent to said sash, a spring-operated shaft passing through said casing and provided with Va cam, a springoperated lever mounted in said casing and provided with two parts in connection with which said cam is adapted to operate, said lever being provided at one end with a lug or projection which is adapted to operate in connection with said rack-bar, and means for operating said shaft, consisting of a key which is adapted to be passed through the side of the window-frame, substantially as shown and described.

3. A window-frame provided with the usual sashes, a casing mounted in the frame between said sashes, a spring-operated shaft passing through said casing and provided with a cam, a spring-operated lever mounted in said casing and adapted to be operated by said cam, said lever being provided at one IOO IIO

end with a cross-head adapted to operate in connection with rack-bars secured to the sashes, and means for operating said shaft, substantially as shown and described.

4. In a lock, a easing, a spring-operated shaft passing therethrough,and provided with a cam, means for operating said shaft and a spring-operated lever mounted in said easing and adapted to be operated by said cam, said lever being curved and provided With tWo different Aparts in connection With which said cam is adapted to operate, substantially as shown and described. y

5. The combination with a Window frame and sash, the sash being provided with a rackbar, of a lock mounted in said frame and comprising a shaft provided with a cam, a lever adapted at tWo different points to be operated by said cam and to engage with said rackbar, and means for operating said shaft, substantially as shown and described.

G. The combination With a Window-frame, of a sash-lock Which is mounted therein between the spaces occupied by the sashes, said lock being provided with a lever having a cross-head at one end which is adapted to operate in connection with rack-bars secured to the sashes, and means for operating said lever, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed my name; in presence of the subscribing Witnesses, this 14th day of November, 1898.

ALLEN PAUL HEIDT..

Witnesses:

WILLIAM E. DoUD, A. PADLosKY. 

